Three-Dimensional Reconstruction From Time-Domain Electromagnetic Waves

Abstract

Abstract-An iterative time-domain algorithm for reconstructing three-dimensional (3-D) objects is presented, using normalized microwave data. The incident waveform information is excluded from the cost functional by normalizing the observed and calculated fields in the frequency domain. The exciting pulse used in the reconstruction can be freely selected by considering the bandwidth of the received data. Two numerical examples are shown to demonstrate that the proposed method can rebuild an inhomogeneous object from noisy data where different waveforms in the observation and reconstruction are used. Two normalized data sets from synthetic observed data and calculated data for a known model are illustrated too.

Analysis of complicated structure seismic wave fields

“…It is not only applied in the analysis of special wave fi elds (Hong and Kennett, 2004) and seismic migration imaging (Baysal and Kosloff, 1984;Chang and McMechan, 1986) but also to wave equation-based inversion (Zhou and He, 1995;Zhou et al, 2007Zhou et al, , 2008Chen and Mou, 1996;Fu and Han, 2005).…”